Question: An arc lamp requires 20 A current at 120 V d.c. source. If this lamp has to be used on an a.c. source at 220

An arc lamp requires 20 A current at 120 V d.c. source. If this lamp has to be used on an a.c. source at 220 V, 50 Hz, find the value of the inductance of an inductor that must be connected with the lamp in order to maintain the same current.

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